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Manfred Krost
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Kaiserslautern, DE
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Metal sleeve production
Patent number
4,450,704
Issue date
May 29, 1984
Motomak Motorenbau, Maschinen- Und Werkzeugfabrik, Konstruktionen GmbH
Georg Schaeffler
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...